Radiator core



Nov. 30 1926. 1,608,736

L. A. HAAS ET AL RADIATOR CORE UIiEinal Filed Feb. 24. 1925 I 671145 177167 6 443 Mil/am fa&rz 1744/ Patented Nov. 30, 1926. V

UNITED STATES 1,608,736 PATENT OFFICE.

LOUIS ANDREW HAAS AND WILLIAM JOHN HAAS, OF ST. PAUIi, MINNESOTA.

nanm'ron CORE.

Original application filed February 24,

Our invention relates to improvements in radiator cores.

To meet various needs, it is desirable to employ annular radiator cores in full circular or segmental form. Cores of the latter clesign have been employed to some extent in radiators for commercial trucks. In such use of said radiators, segmental cores have been united with upper and a lower feed and drain tanks, the assembly encircling a fan designed to force air centrifugally through said segmental cores. These cores have comprised a plurality of curved tubes arranged in concentric rows and traversed by the conventional cooling fins. As is well known, cores of the tube and fin type are not as efiicient, nor are they as reliable in long use and under the different weather conditions as cores of the so-called cartridge type.

An object of our present invention is to provide a simple and durable radiator core of the cartridge type constructed in the form of a ring or hollow cylinder or segmental part of either.

With the foregoing and other objects in view, which will appear in the following description, the invention resides in the novel combination and arrangement of parts and in the details of construction hereinafter described and claimed.

In the drawings, Fig. 1 represents, in dotted and solid .lines, a segmental form of radiator core embodying our invention, the illustration in solid lines being limited to avoid unnecessary duplication of lines in the disclosure.

Referring to the drawing, it will be seen that the illustrated embodiment of our improved radiator core is annular in form and comprises an assemblage of cartridges or tubes 10 disposed radially of the axis of the tube assembly. The tubes 10 are identical, each end of each tube being expanded to form an hexagonal head 10 and said tubes are disposed in rows diagonally of the axis of the structure. The inner heads 10 of the tubes 10 are soldered together face to face, as shown at the lower part of Fig. 1, the inner concave wall of the structure, formed by said inner heads, being sealed in the soldering process. The diagonal rows of tubes 10 are spread apart at the outer ends of said tubes, the adjacent faces of the heads 10 in each row contacting one with 1925, Serial No. 11,106. Divided and this application filed August 18, 1925. Serial No. 50,900.

the other. Spacing keeper strips 11 having zigzag form are inserted between the outer heads 10 of the rowsof tubes 10 and conform with the non-contacting faces of said heads 10*, said strips being soldered to said faces to join the outer ends of the tubes 10 and to seal the convex wall formed by ing capacity for fluid between the tubes 10.

Another form of conduit may be readily resolved from the disclosure in Fig. 1 by employing a pair of end sealing plates in lieu of the segmental plates 12. In such form, the structure, of course, would lie flat instead of on end as seen in said Fig. 1. And it will also be understood that the annular tube assembly may be in the form of a complete ringor cylinder.

Our improved method of forming the present improved radiator core is set forth and claimed in our co-pending application, Serial Number 11,106 from which this application has been divided.

Changes in the specific form of our in vention, as herein disclosed, may be made within the scope of what is claimed without departing from the spirit of our invention.

Having described our invention, what we claim as new and desire to protect by Letters Patent is:

1. An annular radiator core including an assemblage of headed tubes disposed radially of the axis of the core structure and relatively arranged with the tube heads defining inner and outer curved walls, the heads at the inner ends of said tubes being joined to seal said inner wall fluid tight, and spacing keeper elements interposed between the heads at the outer ends of said tubes, said elements and heads being joined to seal said outer wall fluid tight.

2. An annular radiator core including an assemblage of tubes disposed radially of the axis of the core structure and joined at the inner ends thereof to provide a sealed concave wall and spacing keeper means associated with the outer ends of said tubes and joined thereto to provide a sealed convex Wall.

3. An annular radiator core including an assemblage of tubes expanded at their ends to form hexagonal heads, said tubes being disposed radially of the axis of the core structure and in rows diagonally of said axis, the adjacent faces of the inner "heads of said tubes closely abutting ..one another and sealed together .to provide a fluid tight concave Wall, the outer heads of said tubes in each vdiagonal row having the adjacent faces thereof abutting one another, and spacing keeper strips interposed between the rows of tubes and formed to closely abut the adjacent faces of said outer heads,

said-heads beingsealedtogether and to said strips to provide a fluid'tight convex Wall. 4. An annular radiator core including an assembly of tubes disposed radially of the axis of the core structure and joined at the inner ends thereof to provide a sealed concave Wall, spacing keeper means associated With the outer ends of said tubes and joined thereto to provide asealed convex Wall and Wa l Plate compl m nting said cu ed Walls,'said plates being sealed to the tubes h assemb y a d o said spac ng k ep mea 7 In testimony whereof, We have signed our m s 0' th Spec a ion.- -.-LO1UIS. ANDREW AA f iILLIAM J QHN .HAAS- 

